I recently signed up for iTunes Match and got decent results for my library. Using some guides online, I then used iTunes to replace some of my lower quality CD rips from back in the 128kbps days to Matched M4As. When I then sync my iOS devices, I noticed that these new matched copies did not sync automatically via iTunes. In fact, they showed up as greyed-out entries in the Music app (iOS 6). I can turn on iTunes Match on the device and download them from the store no problem, but what happens if I stop subscribing to Match? Will iTunes refuse to locally sync the Match M4As if I let my subscription lapse? I'm starting to think replacing my old copies wasn't such a good idea. Did any early adopters let their subscription lapse? What has your experience been?